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Users place their hands on the designated metallic spots and watch the voltmeter's needle move – indicating the electrical current passing from one metal to another through their bodies; experimenting with cold/warm and wet/ dry hands, or with several users holding hands – they can see the effect on the voltage levels.
Scientific Principle: Electricity in the human body
Needed Infrastructure: None
Size in mm: height: 200
width: 700
depth / length: 500
